This study investigates the temporal dynamics of snow cover and its impact on flood events using MODIS snow cover data from Terra and Aqua satellites. The analysis has been conducted across the Danube River basin and Austria with a comprehensive dataset of snow cover and river discharges spanning from 2001 to 2021. The MODIS sensors offer spatial resolutions of 500 meters and a daily temporal resolution, crucial for capturing snow cover variations. To address cloud obscuration, a specific threshold for cloud coverage has been chosen and merging techniques utilized to increase the accuracy of the snow cover data. Our assessment reveals a general decreasing trend in snow cover across the Danube sub-catchments, with varying rates of decrease among different basins and elevation ranges.